/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*
** Test socket IO timeouts
**
**
**
**
** Modification History:
** 14-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
**           The debug mode will print all of the printfs associated with this
*test.
**           The regress mode will be the default mode. Since the regress tool
*limits
**           the output to a one line status:PASS or FAIL,all of the printf
*statements
**           have been handled with an if (debug_mode) statement.
***********************************************************************/
/***********************************************************************
** Includes
***********************************************************************/
/* Used to get the command line option */
#include "plgetopt.h"

#include <stdio.h>
#include "nspr.h"

#define NUM_THREADS 1
#define BASE_PORT 8000
#define DEFAULT_ACCEPT_TIMEOUT 2

typedef struct threadInfo {
  PRInt16 id;
  PRInt16 accept_timeout;
  PRLock* dead_lock;
  PRCondVar* dead_cv;
  PRInt32* alive;
} threadInfo;

PRIntn failed_already = 0;
PRIntn debug_mode = 0;

#define LOCAL_SCOPE_STRING "LOCAL scope"
#define GLOBAL_SCOPE_STRING "GLOBAL scope"
#define GLOBAL_BOUND_SCOPE_STRING "GLOBAL_BOUND scope"

void thread_main(void* _info) {
  threadInfo* info = (threadInfo*)_info;
  PRNetAddr listenAddr;
  PRNetAddr clientAddr;
  PRFileDesc* listenSock = NULL;
  PRFileDesc* clientSock;
  PRStatus rv;
  PRThreadScope tscope;
  char* scope_str;

  if (debug_mode) {
    printf("thread %d is alive\n", info->id);
  }
  tscope = PR_GetThreadScope(PR_GetCurrentThread());

  switch (tscope) {
    case PR_LOCAL_THREAD:
      scope_str = LOCAL_SCOPE_STRING;
      break;
    case PR_GLOBAL_THREAD:
      scope_str = GLOBAL_SCOPE_STRING;
      break;
    case PR_GLOBAL_BOUND_THREAD:
      scope_str = GLOBAL_BOUND_SCOPE_STRING;
      break;
    default:
      PR_NOT_REACHED("Invalid thread scope");
      break;
  }
  printf("thread id %d, scope %s\n", info->id, scope_str);

  listenSock = PR_NewTCPSocket();
  if (!listenSock) {
    if (debug_mode) {
      printf("unable to create listen socket\n");
    }
    failed_already = 1;
    goto dead;
  }

  listenAddr.inet.family = PR_AF_INET;
  listenAddr.inet.port = PR_htons(BASE_PORT + info->id);
  listenAddr.inet.ip = PR_htonl(PR_INADDR_ANY);
  rv = PR_Bind(listenSock, &listenAddr);
  if (rv == PR_FAILURE) {
    if (debug_mode) {
      printf("unable to bind\n");
    }
    failed_already = 1;
    goto dead;
  }

  rv = PR_Listen(listenSock, 4);
  if (rv == PR_FAILURE) {
    if (debug_mode) {
      printf("unable to listen\n");
    }
    failed_already = 1;
    goto dead;
  }

  if (debug_mode)
    printf("thread %d going into accept for %d seconds\n", info->id,
           info->accept_timeout + info->id);

  clientSock = PR_Accept(listenSock, &clientAddr,
                         PR_SecondsToInterval(info->accept_timeout + info->id));

  if (clientSock == NULL) {
    if (PR_GetError() == PR_IO_TIMEOUT_ERROR) {
      if (debug_mode) {
        printf("PR_Accept() timeout worked!\n");
        printf("TEST PASSED! PR_Accept() returned error %d\n",
               PR_IO_TIMEOUT_ERROR);
      }
    } else {
      if (debug_mode)
        printf("TEST FAILED! PR_Accept() returned error %d\n", PR_GetError());
      failed_already = 1;
    }
  } else {
    if (debug_mode) {
      printf("TEST FAILED! PR_Accept() succeeded?\n");
    }
    failed_already = 1;
    PR_Close(clientSock);
  }

dead:
  if (listenSock) {
    PR_Close(listenSock);
  }
  PR_Lock(info->dead_lock);
  (*info->alive)--;
  PR_NotifyCondVar(info->dead_cv);
  PR_Unlock(info->dead_lock);

  if (debug_mode) {
    printf("thread %d is dead\n", info->id);
  }

  PR_Free(info);
}

void thread_test(PRThreadScope scope, PRInt32 num_threads) {
  PRInt32 index;
  PRThread* thr;
  PRLock* dead_lock;
  PRCondVar* dead_cv;
  PRInt32 alive;

  if (debug_mode) {
    printf("IO Timeout test started with %d threads\n", num_threads);
  }

  dead_lock = PR_NewLock();
  dead_cv = PR_NewCondVar(dead_lock);
  alive = num_threads;

  for (index = 0; index < num_threads; index++) {
    threadInfo* info = (threadInfo*)PR_Malloc(sizeof(threadInfo));

    info->id = index;
    info->dead_lock = dead_lock;
    info->dead_cv = dead_cv;
    info->alive = &alive;
    info->accept_timeout = DEFAULT_ACCEPT_TIMEOUT;

    thr = PR_CreateThread(PR_USER_THREAD, thread_main, (void*)info,
                          PR_PRIORITY_NORMAL, scope, PR_UNJOINABLE_THREAD, 0);

    if (!thr) {
      printf("Failed to create thread, error = %d(%d)\n", PR_GetError(),
             PR_GetOSError());
      failed_already = 1;

      PR_Lock(dead_lock);
      alive--;
      PR_Unlock(dead_lock);
    }
  }

  PR_Lock(dead_lock);
  while (alive) {
    if (debug_mode) {
      printf("main loop awake; alive = %d\n", alive);
    }
    PR_WaitCondVar(dead_cv, PR_INTERVAL_NO_TIMEOUT);
  }
  PR_Unlock(dead_lock);

  PR_DestroyCondVar(dead_cv);
  PR_DestroyLock(dead_lock);
}

int main(int argc, char** argv) {
  PRInt32 num_threads = 0;

  /* The command line argument: -d is used to determine if the test is being run
  in debug mode. The regress tool requires only one line output:PASS or FAIL.
  All of the printfs associated with this test has been handled with a if
  (debug_mode) test. Usage: test_name [-d] [-t <threads>]
  */
  PLOptStatus os;
  PLOptState* opt = PL_CreateOptState(argc, argv, "dt:");
  while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
    if (PL_OPT_BAD == os) {
      continue;
    }
    switch (opt->option) {
      case 'd': /* debug mode */
        debug_mode = 1;
        break;
      case 't': /* threads to involve */
        num_threads = atoi(opt->value);
        break;
      default:
        break;
    }
  }
  PL_DestroyOptState(opt);

  /* main test */

  if (0 == num_threads) {
    num_threads = NUM_THREADS;
  }

  PR_Init(PR_USER_THREAD, PR_PRIORITY_LOW, 0);

  printf("test with global bound thread\n");
  thread_test(PR_GLOBAL_BOUND_THREAD, num_threads);

  printf("test with local thread\n");
  thread_test(PR_LOCAL_THREAD, num_threads);

  printf("test with global thread\n");
  thread_test(PR_GLOBAL_THREAD, num_threads);

  PR_Cleanup();

  if (failed_already) {
    return 1;
  } else {
    return 0;
  }
}
